Platyctenea vs animal order

Platyctenea and animal order both are nouns.

Word	Noun	Adjective	Verb	Adverb
Platyctenea	Yes	No	No	No
animal order	Yes	No	No	No

As nouns, animal order is a hypernym of Platyctenea; that is, animal order is a word with a broader meaning than Platyctenea:

Platyctenea (noun)	animal order (noun)
an order of Tentaculata	the order of animals